Gondwana Land :

It was an ancient supercontinent that broke up about 180 million years ago.   The continent eventually split into landmasses we recognise today Africa, South America,  Australia, Antarctica, the Indian subcontinent and the Arabian Peninsula. 


A natural flow of water that is smaller than a river. 


Barchan, also spelled Barkhan, crescent-shaped sand dune produced by the action of wind predominately from one direction. 


The plants of a particular region or period. 


The collective term for the species of animals in a particular region or period. 


Plateau is an extensive area of flat upland usually bounded by an escarpment (i.e., steep slope) on all sides but sometimes enclosed by mountains.

Sedimentary rocks

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Sedimentary rocks are created by accumulating existing rocks or fragments of extinct organisms on the Earth's surface.

Igneous rocks

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Igneous rocks are defined as types of rocks that are formed when molten rock (rock liquefied by intense heat and pressure) cools to a solid state.

Metamorphic rocks

Metamorphic rocks are formed when rock changes over a period of time due to a lot of physical changes like pressure, heat and different chemical activity.

Geosyncline :

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A geosyncline is a large-scale depression in the Earth’s crust containing very thick deposits.  A narrow, shallow, elongated basin with a  sinking bottom in which a considerable thickness  of sediments was deposited by the river coming  from Angaraland and Gondwana land is called a  ‘Geosyncline’. 

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.